81722795

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{839}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 128701440

約数和(自身を除く): 46978645

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 121, 161, 253, 385, 605, 805, 839, 847, 1265, 1771, 2783, 4195, 4235, 5873, 8855, 9229, 13915, 19297, 19481, 29365, 46145, 64603, 96485, 97405, 101519, 135079, 212267, 323015, 507595, 675395, 710633, 1061335, 1485869, 2334937, 3553165, 7429345, 11674685, 16344559, 81722795]

約数ペア:

[(1, 81722795), (5, 16344559), (7, 11674685), (11, 7429345), (23, 3553165), (35, 2334937), (55, 1485869), (77, 1061335), (115, 710633), (121, 675395), (161, 507595), (253, 323015), (385, 212267), (605, 135079), (805, 101519), (839, 97405), (847, 96485), (1265, 64603), (1771, 46145), (2783, 29365), (4195, 19481), (4235, 19297), (5873, 13915), (8855, 9229)]